﻿#include <iostream>

using namespace std;

int main() {
	int a[4][3];

	cout << "数组a为" << sizeof(a) / sizeof(a[0]) << "行" << sizeof(a[0]) / sizeof(a[0][0]) << "列，共" << sizeof(a) / sizeof(a[0][0])
		<< "个构成元素\n";

	cin.get();
}